Machine for packing boxes



Feb. 2s, 192s. 1,661,086

v. PoPov CHINE FOR PACKING BOXES mea June ,'15, 192s `5 sneetshe'et 1 FigA .f fof-0 Feb. s, 1926. y 1,661,066

V. PPOV MACHINE FOR PACKING BOXES Filed June 15. 1926 5 Sheets-Sheet 2 6 20 49, aaa

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Feb. 28,1928.`

v. PoPov MACHINE FOR PACKING BOXES VP1166 June 15. 1926 5 sheets-sheet4 4 FiSA Feb. 28, 1928.

V POPOV MACHINE Fonuoxme BoxEs Filed IJune 15; 1926.

5 Sheets-Sheet E2 Petented Feb. 2s, 192e.4

rannte PATENT, OFFICE.

VLADIMIR IPOPOV, OF PILSEN, CZECHOSLOVAKIA.

MACHINE FOR PACKING BOXES.

. Application filed June 15, 1926, Serial No. 116,213, and. in Germany June 20,` 1925.

The present invention relates to a machine for the packing of .any desired materials into boxes consisting of one or two sheaths or coverings.

Packingmachines, and particularly packing machines which co-operate with-the machines that produce the articles to be packed (cigarettes for example) are lrequired to be of large capacity. `Thus for example one packing machine mustserve at least one cigarette machine, which makes more than one thousand cigarettes per minute Existing packing machines (namely those which them# selves receive the paper, make boxes out of it, fill them with cigarettes. and close them lwith adhesive) do not permit of such a higha packet from a sheet of paper. to be. executed, andthe packet produced on one shaping'body ol the drum to be supplied for further treatment to a suitable piece of apparatus. which receives the packet in a suitable sleeve or shell. In the caseof such a method of working it is absolutely necessary for the shaping body, by which the box is transferred to the sleeve, to take up an extremely accurate position in relation to the sleeve while the drum is stationary. The rotating V of the drum is executed with various devices,

lsuch for example as ratchet,k wheels and the like. l y

Invrthe case of `sach mechanisms there arise at increased speeds centrifugal forces which. make the`stoppag`e of the drum in a definite i position impossible, for which reason the shaping bodies do not take up an accurate position in relation to the sleeves, as a result of which various disturbances occur which inevitably lead to `the boxes being damaged 5()` and torn.

:i ,Byemploying different kinds of pawls The disadvantages of existing packingl machines are completely obviated by the ma-l chine according to the present invention, and

the essence of the invention consists in ther fact that on a common shaft two drums are so secured that the moulds of the first drum, upon which the open 'boxes are manufactured, and the sleeves or shells of the second drum, which serve for the reception of the empty boxes made on the first drum lie/opposite to one another and execute t e same 7rotary movement jointly from one working position to the other.` The correct 'position ofthe shaping bodies relative to the sleeves is ensured in the machine according tothe present invention, independently of the 'method ot' working of the driving mechamsm.

A further disadvantage of existing packing machines consists in theV fact that their output is reduced by the opening of the boxes inthe transference thereof from the shaping v bodies to the sleeves by the extruders. This 'opening is caused mainly by the fact that the adhesive by means of whlch the bottom of the boxI is struck down does not dry so quickly as to prevent the boxes opening.

This defect. is remedied in the machine according to the inventionby a device, the object of vwhich is to prevent the box from opening during the operation of the extruder .which has a tendency to open Vthe bottom of the box outwards from the inside, by a special nger orv cam holding thebox from outside during the extrusion period.

The further advantages ofthe machine accordinfr to the resent invention will be obvious trom the further description.

The machineaccording to the invention is diagrammatically illustratedin the accompanying drawings:

Fig. 1 is a view from the front, Fig. 2 a section on the line A-B in Fig. 1,'

Fig. 3 a section on the line C--D in Fig. 2, gig. 4 a section on the line E-F in Fig. 2, an Fig. 5 a section on the line GH in Fig. 1. 5 Fig. 6 is a diagram.

The object of the machine according to the invention is to pack various materials into boxes consisting of two sheaths or coverings, namely an inner sheath and an outer sheath. In" the drawings, 1 denotes a table upon which is secured a casing 2, which contains the actuating mechanisms. 3 is a flat casing or an actual plate. in which also the actuating mechanisms are arranged. The casing 3 is. closed by a cover 4 (Fig. 2).

Both`the casings 2 and 3 serve as a superstructure for supporting the actual working members of the machine, which4 comprises three main constituents, namely a shaft 5, and drums 6 and 7 secured thereto. The .shaft 5, together with the drums 6 and 7,

receives from the main shaft 8, which is set in rotation by the belt pulley 9 (Fig. 2) intermittent rotary movements, each anounting to one-sixth of a revolution, and corresponding to the six working positions of the drums. This intermittent rotary movement may be produced by any desired known device, such for example as a, pin 10 Secured cecentrically to the main shaft 8, a rod 11, a pawl 12, and a six-toothedratchet wheel 13 (Fig. 3).

On the drum 6 are -mounted six moulds 14, 14", 14"-, 14d, 14", 14. In the interior of this drum are located the cxtruders 15a, 15", 15, 15d, 15e, 15, which in consequence of the periodic rotationv of-the drum 6 come in turn into engagement withthe rod 16 by means of teeth on the rear ends of the extruders 15a to 15f, the rod 16 likewise having teeth on its front end (Fig. 2). The moulds 14a to 14, during one revolution of the drum 6, pass in succession through the -positions I, II, III, IV, V and VI (Fig. 6). The drum 7 which is formed by a wheel is `provided with six sleeves or shells 17, 17", 17, 17d, 17", 17f, which are arranged facing the moulds 14, 14", 14C, 14d, 14", and 14t of l the drum 6. 'Ihe sleeves are secured to the .fmjendscr shafts 18a, 18h, 18C, 18d, 18e, and lef '/(see F1 s. 2 and 5), the other ends of whichA carry p ate-lik e drivers 19a, 19h, 19C, 19d, 19e,

and 19f.

These vdrivers are located, in the positions I, II, III, IV, V, and VI, in grooves inta dise 20, which is secured to the plate 3 by means of a wedge or key and a nut 21, and

which at the same time forms the bearing for the Shaft. 5, the hubofthisydise Vconj0 stautingffthepivet for a twe-wiijigeafstasr 22 (Figs. 1,2 and 5).' ,'lliefdriver, which fromtimegtdtimeftakes up the position TIII,

"is located iii 'thejn'otch in a bevel wheel y27,

which will be described hereinaften The lower vane of the sector 22 has pinion teeth, which engage in the teeth of a lever 23, which can execute rocking movements on a shaft 24 b means of an eccentric groove on a toothe wheel 25, this toothed wheel admitting of being rotated by means of a ,70 toothed wheel 26 keyed on to the main shaft 8.v For one revolution of the toothed wheel 26 the toothed wheel 25 only rotates through half a revolution, in order that for one revolution of the driving shaft the rocking movement ofthe lever 23 may only be executed towards one breadth. The lever 23 swings back during the following rotation of the working shaft. -The rocking movements of the lever 23 are only executed when thc180 drums 6 and 7 are stationary. During thekrevolution of the drums 7 and 6 the lever 23 must remain at rest, at the moment vwhen the drums 6 and 7 are stationary and reeeiving interrupted motion from the main shaft 8 by means of the pin 10 (Fig. v3) fixed eceentrically to the axis' of the shaft 8, the tension rod 11, the pawl 12, and the sixtoothed ratchet wheel13, an oscillation of the lever 23 takes place, caused by the shape of the eccentric'curve of the toothed wheel 25, whereas during the revolving of the drums the pin of the lever 23 moves in those parts of the eccentric curve ofthe Wheel 25 which are concentric with the centre line of rotation of the Wheel 25, and the lever 23 can therefore perform no oscillation.

The rocking movement which the twowinged sectors 22v receives from the lever 23 is imparted by means of the upper wing of the sector 22, which is provided with bevel teeth, to athe. bevelwlieel 27, Which is rotatably arranged on a pin 28, which is Secured in a notch in the pulley 20, the amplitude of the oscillating movement of the sector 22 being such that the toothed lwheel 27 rotates through 180. Since the toothed Wheel 27 has a notch into which the driver 19a to 19" ofthe sleeve 17a to 17 penetrates whenothey are located just in the position III, the rotation of the toothed wheel' 27 is likewise transmitted to the'sleeve, so that all the sleeves that come into the position III are rotated through The casing 3 contains rods 29, 30, 31, 32, U5 and 33, which are placed as shown in FigureV 2 and which Ahave at their lower ends teethN c in which engage teeth on the sectors 34, 35, 36 37 -and 38, which during a rotation of associated eccentrics, receive a rocking movement, which is imparted to the rods v29, 30, 31, 32, and 33, as a result 'of which theseA rods mere 11p-and downf(Fis-4) bendingthe paper round the moulds onk the .y drum 6, vTlierod 42$ has.two,foldingdevices l. for thebe'n'din'g over, aidthse consistV of brackets 39 and 40, which have folding plates at their `ends (Figs. 2 and1 4)'. The rod 3Q 13 the working shaft, by means of the l2" U"on these',rods'arearranged foldersfor 125 has likewise two brackets, 41 and 42. On the rod 31 are likewise located correspondingly curved brackets 43 and 44, upon which folding plates 45 and 46 are secured. The rod 33 carries brackets 47 and 48 with flaps 49 and 50. The rod 32 imparts a movement, by means' of the toothed wheels 51 and 52, to the shafts 53 and 54, bending devices '55 and 56, -`which are in the form of flat hooks, being secured to these shafts.

The said rod 16,- which is connected in turn with the extruders 15a to 15t by means of the hook-like teeth shown in Figure 2, as hereinbefore described, receives, at the time when the drums 6 and 7 are stationary, from the working shaft 8, a reciprocating movement, in order that the latter may be transmitted to the associated extrudcrs.

In Fig. 3 and in Fig. 2 is diagrammaticallyillustrated a transmission by means of which the rod 16 receives a movement from the working shaft 8, by means of a lever 57, a connecting rod 58, a rod 59 and toothed wheels 60 and 61, the last of which, through a direct toothed connection, transmits the movement to the rod 16.

The'rod 16 by means of screws or rivets and intermediate layers 62 is firmly connected by its rear end with a rod 63, which consequently receives the same movements as the rod 16 and is guided in a guide 64 which is secured in a convenient manner to the wall of the casing 2.

At the front end of the rod 63 is located l av finger or cam 65, which under particular conditions can execute rocking movements on a pivot 66. In Fig. 2 the cam 65 assumes a position in which it cannot rotate about the pivot 66 as it is prevented from so doing by a stop 67 .on the lefty hand side, the determining influence of whichl resides in adjusting the finger linto the position "shown in Fig. 2. The finger 65 cannot be rotated towards the right as its front end bears upon the rod 63.

The mechanisms not hereinbefore described Lwill be explained simultaneously" with the description of the method of working of the machine.

In Fig. 3 the drum 6 is illustrated in that position in which the mould 14a takes up the position I and the mould 14d the osition IV.- In this position there is place above the mould 14a on the table 68 a sheet of paper of suitable dimensions, which is to serve as the inner sheath of the box. This sheet of paper is represented in Fig. 3 by two lines. Under t-he mould 14d is placed a sheet of paper, which servesI as the outersheath of the box. In the manner already described the shaft 5 is further rotated at the same time with the drums through one-sixth of a revolution. The sheet of paper on `the table 68 is seized by the mould 14, which in passing through a passage formed of two guiding segments and 71 bends over thepaper at ,its edges into a channel shape. The mould 14a, upon reaching the position II will therefore carry the paper in the condition shown in Fig. 6. At the same moment the same working movement is also effected with the sheetA of paper on the table .69. This sheet of paper passes, on the mould 14, through similar devices 69 and 72 before it passes out ofthe position IV linto the position V.

The mould 14a comes into the position II with the sheet of paper' bent into a channel shape just in the same way as the mould 14d comes out of the position IV into the position V with the paper bent into a channel shape. Y

In these positions thcf'papcrs are further folded in a similai' manner. The rod 33 is moved downwards by the sector 37 and imparts by means of thefolding plate 50 to the paper located on the mould 14 a third longitudinally directed fold. The folding plate 49 of the rod at the same time bends the outer paper sheath on the mould 14d further over in its longitudinal direction. Hereupon the rod 33 with the folding plates 50 and 49'gocs back andthe rod 31 with the folding plates 46 and 45 moves upwards and carries out the fourth longitudinal bending ofthe paper on the moulds 14 and 14h.

lVith the return of the rod 31 `to the initial position the iod 32 begins to work and sets in mot-ion the folding devices 55 and 56, ,which'simultaneously carry out the first bending over of the end flaps projecting above the mould, of the coverings located on the moulds 14a and 141 in the position II and the position V. Hereuponv the drum executes a further sixth of a revolution, and by lmeans of two stationary folding plates v7 5 and 76, which are secured to standards 7 3 and 74, during the rotation of the drum, the bending over of the second end flap of the box is carried out on the moulds 14a and 14h. These mouldsv come in this manner into the positions III and VIwhere two further folds are carried out, this being done by means of the rods 28 and of the folding devices 39 and 40 secured thereto, which carry out the third fold. The bending over of the closing tip is executed by means of the rod 30 and of the folders 41 and 42.

It may be observed that in each position of rest of the drum 6 fresh sheets of paper must be placed on the tables 68 and 69, in order that an uninterrupted working of the machine -may be ensured.

The mould 14EL already covered with a 4sheet of paper, which it took in the position I from the table 68, `comes into the position IV, in which 4the outer sheet of paper is supplied. With this sheet the mould 14.l comes into the position V. On the way there the outer sheet is sub'ected to a preliminary folding, this being d described. In the position V the outer sheet receives two further longitudinal folds and an end fold. In the method of working already described the mould 14SL is exposed to further working processes in the transition from the position V to the position VI, and finally the mould 14 comes back out' of the position VI into the position I.

In the position I the finished box must be brought by means of the extruder 15*- out of the mould 14a into the associated sleeve or Shell 17'@l on the drum 7. Since in the event of such a displacement of the box, the bottom thereof would be opened by the extruder 15, it is necessary to prevent, such opening from occurring.l For this purpose, in front of the box, is arranged a finger or cam 65, already described, which during the movement of the box out ofthe mould 14a or the like on the drum 6 into thesleeve or shell 17 a or the-like on the drum 7 moves in front of the box and keeps the end of the box closed,

and does not quit the holding position in moves into the sleeve, for whichA purpose the sleeves have corresponding slots (see Figs. 1 and 3) which enable the finger to maintain its operative position.

` As soon as the box takes up its position in a' sleeve on the, drum 7 the finger 65 must be brought out of the operative position. that is to say its free end, which keeps the bottom of the box closed forwardly during thewo'rking stroke, must be'displaced side-ways (see Fig. 2). This displacement is effected in the following manner z-The finger 65, which has traversed the slots in the corresponding sleeves, strikes at the end of its travelagainst the wall of a receiving channel 77, which constrains the finger 65 to rotate about the pin .66, so that it takes up a position parallel to the rod 63, in which position the finger' is guided back into its original position Without touching the box supported in the Acorresponding sleeve. During its rearward travel the finger 65' strikes against the stop 67 and is thereby rotated back afresh about the pin 66 into the working position.

In this manner as 'may be seen from the description of the method of working for fthe manufacture of boxes on the drum 6, each time the drum' is stationary completely similar working rocesses are executed in the positions locate opposite to one another, `as well asgduring the transition from one position to the next. In the position I the box consisting of two paper sheaths., cornes by means of the combined method of working of the extruders and ofthe finger 65 into a corresponding sleeve on the drum I7. During a rotation of the drum this box with .its sleeve comes into the position II, as hasalready been mentioned, the sleeve in the position II, in consequence of the rotation of the bevel wheel 27 through 180, is rotated transversely to its longitudinal axis, 4 and therefore the box, which arrivedk in the position II with its open endy at the back, no W i into the position III and then further into the position IV. In one of these positions the box is filled in a suitable manner with the material to be packed, such as cigarettes for example. Out of the position IV the filled box comes intoa the position V, where by means of the drop levers 78 and 79, illustrated in Figure 1, which are connected with one another by teeth and are set going by the associated eccentrics onthe Working shaft 8 by means of the lever 8O and the connecting rod 81, the bending over of the two short end flaps of the box is carried out.

position V into the position VI a third fold is produced at theend of the box by means of a bending template 82, whichis secured to the standarda'83. During the passing out During the passing of the box from the' From the position II the box is brought of'the position VI into the position I the finaliclosing of the box is" effected by means of the template 84 fitted on to the standard 85.

Since in the position I, in the sleeve 17 a finished box is located, and out ofthe mould 14a, as already mentioned, into the said sleeve 17a out of the drum 6. a finished empty box is introduced, the procedure of transferring a box from the drum 6 to the drum 7 is modified as follows :-'I`hebox which has ,been pushed out of the mould 14a by the extruder 15, and which is held in front by the finger 65, meets in the sleeve 17a with the finished full box, the finger 65 first of all meeting this full box and in this manner finding a resistance on the full box and being pressed away to one side, so that the bottom of the empty box coming out of the mould 14a into the sleeve 17 a is no longer held by the finger 65, but bears against the endof the finished fi/ill box which is still located in the sleeve l a.

As soon as the sleeves of the drumy 7 begin to ydeliver finished boxesinl they position I, the finger 65 guides the boxes coming out of the moulds of the drum 6 into the sleeves of the drum 7 only until these fresh boxes touch the finished full boxes, the further forward movementy of the finger 65 being effected in a position parallel to the rod 63. In this condition the finger 65 returns to its originalv osition in which it passes by the boxes an here assumes afresh by means of the stop 67 its working position for the next working stroke.

Hence the sleeves rotate, after they have obtained possession in the position I of the boxes supplied, in one of the following posileo tions through 180, and in this rotated condition they come back into the position I after having traversed all the other positions.

The boxes out of the first drum 6 thereforel enter the sleeves on one side and on the other side alternately.

What I claim is 1. "A machine for packing materials or articles into boxes each consisting of an inner sheath and an outer sheath, comprising a rotatable shaft, two drums secured vto said shaft, a number of moulds for the formation of boxes, secured to the first of said drums, and an e ual number of sleeves for the rcception o said boxes secured `to the second of said drums, each sleeve on the second drum remaining at all times opposite to one and the same mould on the first drum.

2. A machine for packing materials or articles into boxes each consisting of an inner sheath andan outer sheath, comprising a rotatable shaft, two drums secured to said shaft, an even numberof moulds for the formation of boxes secured to the first of said drums, an equal number of sleeves forv the reception of said boxes secured to the second of said drums, each sleeve on the second drum remaining at all times opposite to one and the same mould on-the first drum, half the moulds being adapted to form the inner sheaths of boxes and the other half being adapted to form ,outer sheaths, and two similar sets of diametrically opposite folding devices adapted to form all the longitudinal and bottom folds retuired for the production of -inner sheaths an outer sheaths respectively at diametrically. opposite positions on the first drum.

3. A machine'for packing' materials or articles into boxes each consisting of an inner sheath and an outer sheath, comprising a rotatable shaft, two' drums secured to said shaft, a number of moulds for the formation of boxes, secured to the first of said drums, an equal number of sleeves for the reception of said boxes secured to the second of said drums, eaehsleeve on the second drum remaining at all times opposite to one and the same mould on the first drum, extruders adapted to push boxes out of the f-moulds on the first drum and into the sleeves on the second drum, and means for preventing said extruders from opening the sheath and an outer sheath, comprising arotatable shaft, two drums secured to said shaft, a number of moulds for the formation of boxes, secured to the first of said drums,

an equal number of sleeves for the reception of said boxes secured to the second of sa1d drums, each sleeve on the second drum remaining at all times opposite to one and the same mould on the ,first drum, extruders the rod, and a stop adapted to engagewith the pivoted .finger at the end of the return movement of the rod and rock it back again into a position in which it can bear against the closed bottom of a box.

5. A machine lfor packing materials or articles into boxes each consisting of an inner sheath and an outer sheath, comprising a rotatable shaft, two drums secured to said shaft, a number of moulds for the formation of boxes, secured to the first of said drums, an equal number of' sleeves for the reception of said boxes secured to the second of said drums, each sleeve on the second drum remaining at all times opposite to one and the same mould on the first drum, and means for rotating each sleeve through half a revolution when it reachesone particular working position, so that partially formed boxes reachin that position with their open ends at the ack have their open ends brought to the front.

6. A machine for packing materials or articles into boxes each consisting of an inner sheath and an outer sheath, comprising a rotatable shaft, two drums secured to said shaft, an even number of moulds for the formation of boxes secured to the first of said drums, an equal number of sleeves for the reception of said boxes secured'to the second of said drums, each sleeve on the second drum remaining at all times opposite to one and the same mould on the vfirst drum, half the moulds being adapted to form the inner sheaths of boxes and the other half being adapted to form outer sheaths, two simllar sets of diametrically opposite folding devices adapted to' form all the longitudinal and bottom folds'required for the production of inner sheaths and outer sheaths respectively at diametrically opposite positions on the first drum, extruders adapted` to push boxes out of the moulds on the first drum and into the sleeves on the second drum, and means for preventing said extruders from opemng the boxes.

7. A machine for packing materials or articles into boxes each consisting of an in ner sheath and an outer sheath, comprising a rotatable shaft, two drums secured to said shaft, an even number of moulds for the formation of boxes secured to the first of sand drums, an equal. number of sleeves for the reception of said boxes secured to the second of said drums, each sleeve on the seelll ` ond drum remaining at all times opposite to one and thesame mould on the first drum,"

half the moulds being adapted to form the inner sheaths of boxes and the other half being adapted to form outer sheaths, two similar sets of diametrically opposite folding devices adapted to form all the longitudinal and bottom folds required for the production 4of innner sheaths and outer sheaths respectively at diametrically opposite positions on the first drum, extruders 'adapted to push boxes out of the moulds on the first drum and into the sleeves on the second drum, a rod virtually integral with each extruder, a finger'pivoted to the front end of said rod, the free end of the fiinger being adapted to bear against the closed bottom of the box that is being transferred by the extruder, means for rocking the pivoted finger into a position in which it will not ltouch a box during the return movement of the rod, and a stop adapted-to engage with the pivoted finger at the end of the return movement of the rod and rock it back again into a position in which it can'bear against the closed bottom of a box.

8. A machine for packing materials or articles into boxes each consisting of an inner sheath and an outer sheath, comprising a rotatable shaft, two drums secured to said shaft, an even number of moulds for the fo'rmation of boxes secured to the first of said drums, an equal number of sleeves for the reception of said boxes secured to the second of said drums, each sleeve on the second drum remaining at all times opposite to one and the samemould on the first drum,` half the moulds being adapted to form the inner sheaths of boxes and the other half being adapted to form outer sheaths, two similari sets of diametrically opposite folding devices adapted to form all the longitudinal and bottom folds required for tlie production of inner sheaths and outer sheaths respectively at diametrically opposite positions on the first drum, and means for rotating each sleeve through half a revolution when it reaches one particular working position. so that partially formed boxes reaching that Nposition with their open ends at the back have their open endsvbrought to the front.

9. A machine for packing materials or articles into boxes each consisting of an inner sheath and an outer sheath, comprising a rotatable shaft, two drums secured to said shaft, a number of moulds for the formation of boxes, secured tothe first' ofA said drums, an equal number of sleeves for the ,reception of/said boxes secured to the second of said drums, each sleeve ,on the second drum remaining at all times opposite to one and the same mouldV on the first drum, extruders adapted topushboxes out of the moulds on the first drum and into the sleeves on the second drum, means for-preventing said extruders from opening the boxes, and means for rotating each sleeve through half a revolution when it reaches one particular working position, so that partially formed boxes reaching that position with their open ends at the back have their open ends brought to the front.

10. A machine for packingv materials or articles into boxes each consisting-of an inner sheath and an outer sheath, comprising a rotatable shaft, two drums secured to said shaft, a number of moulds for the formation of boxes secured to the first of said drums, an equal number of sleeves for the reception of said boxes secured to the second of said drums, each sleeve on 'the second drum remaining at all times opposite` to one and the same mouldon the first drum, extruders adapted to push boxes out of the moulds on the first drum and into the sleeves onthe second drum, a rod virtually integral with each extruder, a, finger pivoted to the front end of said rod,'the free end of the finger being adapted to bear against the closed bottom of the box that is being transferred bythe extruder, means-for rockin the pivoted fngerinto a osition in whic it will not touch a box uring the return movement of the rod, a stop adapted to engage with the pivoted finger at the end of the return movement of the rpd and rock it back again into a position in which itV can bear against the closed bottom of a box, and means for rotating each sleeve through Ahalf a revolution when it reaches'one particular working position, so that-partiall second 'of said drums, each sleeve on the' second drum remaining at all times opposite to one and the same mould on the first drum, half `the moulds being adapted to form the innerl sheaths of boxes and the otherhalf being adapted to form outer sheaths, two similar sets of diametricall opposite folding devices adapted to form al the longitudinal and bottom folds required for the production ofinner sheaths and outer sheaths respectively at diametrically opposite positions on the first drum, extruders adapted to push boxes out of the moulds on the first drum and into the sleeves on the second drum, a' rod virtually integral with each extruder, a finger pivoted to .the front end of said rod, the free end of the finger being adapted to bear againstv the closed bottom of the box that is being trzmsund means for rotating each sleeve through 10 ferred by the extruder,meuns for rocking the half u revolution When it reaches one parpivoted linger into :L position in which it will ticulur working position, so that artially not touch u box during the return moveformed boxes reaching that positlon with meut of the rod, a stop adapted to engage their open ends at the back have their open withl the pivoted finger at the end of the en ds brought to the front. l5

' returny movement of the rod, and rock it In testimony whereof I have signed my back again into a position in whichvit can nume to this speciiication.

bear aga-inst the closed bottom of a box, VLADIMIR POPOV. 

